mirror of
https://github.com/grafana/grafana.git
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109 lines
2.5 KiB
Go
109 lines
2.5 KiB
Go
package distcache
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import (
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"testing"
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"time"
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"github.com/bmizerany/assert"
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"github.com/grafana/grafana/pkg/services/sqlstore"
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"github.com/grafana/grafana/pkg/setting"
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)
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type CacheableStruct struct {
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String string
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Int64 int64
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}
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func init() {
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Register(CacheableStruct{})
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}
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func createTestClient(t *testing.T, opts *setting.CacheOpts, sqlstore *sqlstore.SqlStore) CacheStorage {
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t.Helper()
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dc := &DistributedCache{
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SQLStore: sqlstore,
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Cfg: &setting.Cfg{
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CacheOptions: opts,
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},
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}
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err := dc.Init()
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if err != nil {
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t.Fatalf("failed to init client for test. error: %v", err)
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}
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return dc.Client
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}
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func TestCachedBasedOnConfig(t *testing.T) {
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cfg := setting.NewCfg()
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cfg.Load(&setting.CommandLineArgs{
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HomePath: "../../../",
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})
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client := createTestClient(t, cfg.CacheOptions, sqlstore.InitTestDB(t))
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runTestsForClient(t, client)
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}
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func runTestsForClient(t *testing.T, client CacheStorage) {
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canPutGetAndDeleteCachedObjects(t, client)
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canNotFetchExpiredItems(t, client)
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canSetInfiniteCacheExpiration(t, client)
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}
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func canPutGetAndDeleteCachedObjects(t *testing.T, client CacheStorage) {
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cacheableStruct := CacheableStruct{String: "hej", Int64: 2000}
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err := client.Set("key", cacheableStruct, 0)
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assert.Equal(t, err, nil)
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data, err := client.Get("key")
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s, ok := data.(CacheableStruct)
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assert.Equal(t, ok, true)
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assert.Equal(t, s.String, "hej")
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assert.Equal(t, s.Int64, int64(2000))
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err = client.Delete("key")
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assert.Equal(t, err, nil)
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_, err = client.Get("key")
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assert.Equal(t, err, ErrCacheItemNotFound)
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}
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func canNotFetchExpiredItems(t *testing.T, client CacheStorage) {
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cacheableStruct := CacheableStruct{String: "hej", Int64: 2000}
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err := client.Set("key", cacheableStruct, time.Second)
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assert.Equal(t, err, nil)
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//not sure how this can be avoided when testing redis/memcached :/
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<-time.After(time.Second + time.Millisecond)
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// should not be able to read that value since its expired
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_, err = client.Get("key")
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assert.Equal(t, err, ErrCacheItemNotFound)
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}
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func canSetInfiniteCacheExpiration(t *testing.T, client CacheStorage) {
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cacheableStruct := CacheableStruct{String: "hej", Int64: 2000}
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// insert cache item one day back
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getTime = func() time.Time { return time.Now().AddDate(0, 0, -2) }
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err := client.Set("key", cacheableStruct, 0)
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assert.Equal(t, err, nil)
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// should not be able to read that value since its expired
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getTime = time.Now
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data, err := client.Get("key")
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s, ok := data.(CacheableStruct)
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assert.Equal(t, ok, true)
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assert.Equal(t, s.String, "hej")
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assert.Equal(t, s.Int64, int64(2000))
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}
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